II. DESCRIPTION
Local exploitation of an integer signedness error in Sun Microsystem's
Solaris could allow attackers to cause a kernel panic, leading to a DoS
condition on the affected computer.

The facl() system call is used to set access controls on a file. Due to
an improper check on one of the arguments passed to this function, an
attacker can cause the kernel allocate a large amount of memory which
causes a kernel panic.

III. ANALYSIS
Exploitation of this vulnerability would most likely result in a DoS
condition on the affected host. However, there are other functions
called by this function that use the result of the multiplication
performed to allocate memory. On a 64 bit kernel with several gigabytes
of RAM, code execution may be possible. Fixing this vulnerability will
also fix the later vulnerabilities.

IV. DETECTION
iDefense has confirmed the existence of this vulnerability in Solaris 10
on x86 and SPARC architectures. It is suspected that earlier versions
are also affected.

V. WORKAROUND
iDefense is currently unaware of any effective workarounds for this
issue.

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